Name

ahi_c0h4a

Label

Central Apnea-Hypopnea Index (AHI) >= 4% - number of [central apneas] and [hypopneas with >= 4% oxygen desaturation or arousal] per hour of sleep

Calculation
ahi_c0h4a = 60 * (hremba4 + hroa4 + hnrba4 + hnroa4 + carbp + carop + canbp + canop) / slpprdp
Units
events per hour
Type
numeric
Visit vs Central Apnea-Hypopnea Index (AHI) >= 4% - number of [central apneas] and [hypopneas with >= 4% oxygen desaturation or arousal] per hour of sleep
N Mean StdDev Median Min Max Unknown Total
Peds - - - - - - - -
Teenz - - - - - - - -
TREC 515 1.3 ± 3.7 0.6 0.0 75.1 2 517
Age at time of visit vs Central Apnea-Hypopnea Index (AHI) >= 4% - number of [central apneas] and [hypopneas with >= 4% oxygen desaturation or arousal] per hour of sleep
TREC
N Mean StdDev Median Min Max Unknown Total
Total 515 1.3 ± 3.7 0.6 0.0 75.1 2 517
16.14 to 17.41 years 130 1.0 ± 1.5 0.5 0.0 11.6 - 130
17.41 to 17.69 years 128 0.9 ± 1.3 0.5 0.0 11.0 1 129
17.69 to 17.91 years 129 1.9 ± 7.0 0.6 0.0 75.1 - 129
17.91 to 19.56 years 128 1.2 ± 1.6 0.6 0.0 11.9 1 129
Male gender vs Central Apnea-Hypopnea Index (AHI) >= 4% - number of [central apneas] and [hypopneas with >= 4% oxygen desaturation or arousal] per hour of sleep
TREC
N Mean StdDev Median Min Max Unknown Total
Total 515 1.3 ± 3.7 0.6 0.0 75.1 2 517
No 255 0.6 ± 1.0 0.4 0.0 11.9 1 256
Yes 260 1.9 ± 5.1 0.8 0.0 75.1 1 261
Race vs Central Apnea-Hypopnea Index (AHI) >= 4% - number of [central apneas] and [hypopneas with >= 4% oxygen desaturation or arousal] per hour of sleep
TREC
N Mean StdDev Median Min Max Unknown Total
Total 515 1.3 ± 3.7 0.6 0.0 75.1 2 517
White 307 1.4 ± 4.6 0.6 0.0 75.1 2 309
Black 185 1.0 ± 2.0 0.5 0.0 21.6 - 185
Other 23 1.1 ± 1.2 0.6 0.0 4.0 - 23